(19)

(11)

EP 3 723 922 A2

(12)

(88) Date of publication A3: 08.08.2019 (43) Date of publication: 21.10.2020 Bulletin 2020/43 (21) Application number: 18888659.2 (22) Date of filing: 15.12.2018

(51) International Patent Classification (IPC):  B21D 5/14(2006.01) B21C 37/00(2006.01) B21D 5/00(2006.01) (86) International application number: PCT/US2018/065878 (87) International publication number: WO 2019/118943 (20.06.2019 Gazette 2019/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 15.12.2017 US 201715843856 (71) Applicant: Rossi, Jose, E. Ponce PR 00728 (US)	(72) Inventor: Rossi, Jose, E. Ponce PR 00728 (US) (74) Representative: Curell Suñol S.L.P.  Via Augusta 21 08006 Barcelona 08006 Barcelona (ES)